 body{
        background-color: #f7f7f7;
}
.top{
    background-color: #f60;
    color: #fff;
    width: 60px;
    display: block;
    text-align: center;
    padding-top: 10px;
    padding-bottom: 10px;
    position: fixed;
    right: 0;
    bottom: 0px;
}
ul{
    background-color: #fff;
    padding: 5px !important;
}
ul>li{
    float: left;
    margin:5px;
    list-style: none;
    position: relative;
}

ul>li img{
    width: 100%;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid #f60;
    width: 50px;
    list-style: none;
    height: 50px;
}

ul>li>a {
    display: inline-block;
}
@media ( max-width: 320px ) {
    ul>li{
        float: left;
        margin: 0px;
        width: 20%;
        margin-bottom: 5px;
        text-align: center;
        position: relative;
    }
    ul>li>a {
        display: inline-block;
    }
    ul>li img {
        width: 40px;
        height: 40px;
    }
}